October 2001 ///
Special Focus
49th annual Schlumberger Reed-Hycalog rig census
Soaring natural gas prices during the past year resulted in a dynamic U.S. rig fleet. The number of rigs in the U.S. rose after two years of declines, and the activity level of this larger fleet was even more impressive than its expanded size. The number of active rigs rose 31%, pushing utilization to 93%, which is an increase of about 19% from a year ago – a level not seen since the early 1980s.
New drilling technology improves ROP and lowers drilling costs
A closed-loop steering system saves money and reduces casing/ drill pipe wear while conducting near-zero vertical drilling through deepwater salt formations
New rig design improves drilling efficiency
The latest innovation in slant rig drilling technology reduces drilling time for shallow wells by up to 50%, while also improving rig crew safety
Features
Constraining source and charge risk in deepwater areas
In most petroleum companies, each element of the petroleum system is addressed through peer reviews and risking sessions. These elements are: source presence and its characteristics, source maturity, migration (carrier beds), reservoir, trap and seal. An additional risk is oil quality or its preservation. More than half of the risk associated with a prospect or play fairway is assessed via petroleum geochemistry and burial history / thermal / fluid-flow basin modeling. This article will present how regional data, paleo-reconstructions, seepage data via piston coring and 2-D burial history / thermal / fluid-flow basin modeling have typed source-rock characteristics across the deepwater and ultra-deepwater Gulf of Mexico (GOM), and how this helps constrain source type and presence. Also discussed are new definitions of seepage related to petroleum systems vs. unrelated anomalies, how this helps constrain charge, and how all of these data were integrated to define a source-rock model for the deepwater to ultra-deepwater GOM.
Natural Gas: Gathering and Compression
Cooperative effort allows efficient, fast-track development of a gas field – The operator, gas marketer and equipment supplier brought a gas field to full production by using ready-to-ship packages and other equipment from inventory
Part 1 - Mexico's Northern Region launches massive development
State oil company Pemex will conduct a large-scale development of gas reserves over the next five years, much of it in the Northern Region’s Burgos basin
Tectonic setting of the world's giant oil fields
Part 2 continues the discussion of a new classification scheme for the world’s giant fields, focusing on the North Sea, Africa, Persian Gulf and FSU regions
Turkmenistan reaches out to foreign investors
In an exclusive interview, Turkmen Oil and Gas Industry Minister Kurbannazar Nazarov assesses the country’s energy sector and prospects for foreign investors
Using downhole vibration stimulation for enhanced oil recovery
As some operators report production increases, further field tests are warranted for an emerging technology that improves EOR through seismic stimulation
Volatile oil prices result from bad data and misguided attention to inventories
While ignoring unreliable IEA figures, frequent shifts in OPEC quotas still focus too much on API stock changes, often resulting in unintended, wild price swings
Special Report
Mobile offshore production units 2001
World Oil’s annual listing of the 145-unit, global MOPU fleet shows ownership, photographs and performance data for four categories of production vessels
Departments
Columns
Editorial comment
When mere words won’t suffice
International
Mexican gas stance defies predictability; Cuban oil output leaps higher
International Politics
Criticism of the new Venezuelan law dismissed as “a storm in a teacup”
What's happening in drilling
New techniques reduce operating costs; Britain recruits offshore help
What's happening in exploration
Getting a “jump” on the latest theory behind seismic anisotropy
What's happening in production
Several new projects see first oil; New perforating, gravel pack records set
What's happening offshore
Offshore Europe examined various ways to optimize remaining UKCS potential
News & Resources
Companies in the news
Marathon Petroleum Norge A/S agreed with Statoil, Norsk Hydro and TotalFinaElf to acquire interests in five licenses in the Norwegian sector of the North Sea. In Brazil’s third bidding round, Phillips Petroleum Co. finalized an agreement on Blocks BM-ES-11 (in the northern portion of the Greater Campos basin) and BM-PAMA-3 (in the Para Maranhao basin, part of the southern Amazon Fan. Phillips will operate the deepwater blocks. Plans call for seismic acquisition and geological and geophysical evaluations.
Supplement
01-10_49th-farmer_T1.htm (Oct-2001)
Table 1. Change in the available fleet 2001 2000 1999 1998 1997
01-10_49th-farmer_T2.htm (Oct-2001)
Table 2. 2001 Rig census results Ownership Power
01-10_49th-farmer_T4.htm (Oct-2001)
Table 4. Rig utilization by depth capacity Depth rating, ft
01-10_tectonic-mann_fig1.htm (Oct-2001)
Fig. 1. North Sea region.
01-10_tectonic-mann_fig4.htm (Oct-2001)
Fig. 4. Arabian Peninsula and Persian Gulf region.
01-10_tectonic-mann_fig5.htm (Oct-2001)
Fig. 5. West Africa region.
01-10_tectonic-mann_fig7.htm (Oct-2001)
Fig. 7. Ural Mountains region.
Industry At A Glance
01-10_inter-rotary-rig-graph.html (Oct-2001)
Oct. 2001 Vol. 222 No. 10 Industry Stats Source: Baker Hughes Inc.
01-10_int-geophysical-activity.html (Oct-2001)
Oct. 2001 Vol. 222 No. 10 Industry Stats International Geophysical Act
01-10_int-offshore-rigs.html (Oct-2001)
Oct. 2001 Vol. 222 No. 10 Industry Stats
01-10_int-rotary-rig.html (Oct-2001)
Oct. 2001 Vol. 222 No. 10 Industry Stats
01-10_monthlyusgas.html (Oct-2001)
Oct. 2001 Vol. 222 No. 10 Industry Stats
01-10_selectedworldoil.html (Oct-2001)
Oct. 2001 Vol. 222 No. 10 Industry Stats
01-10_us-geophysical-activity.html (Oct-2001)
Oct. 2001 Vol. 222 No. 10 Industry Stats
01-10_us-oil-supply.html (Oct-2001)
Oct. 2001 Vol. 222 No. 10 Industry Stats
01-10_us-rotary-drilling-rigs-graph.html (Oct-2001)
Oct. 2001 Vol. 222 No. 10 Industry Stats
01-10_us-rotary-rigs.html (Oct-2001)
Oct. 2001 Vol. 222 No. 10 Industry Stats U.S. Rotary Drilling Rigs
01-10_workover-rig.html (Oct-2001)
Oct. 2001 Vol. 222 No. 10 Industry Stats Workover Rig Count
01-10_workover-rig-graph.html (Oct-2001)
Oct. 2001 Vol. 222 No. 10 Industry Stats Source: Baker Hughes Inc.
01-10_worldoilproduction.html (Oct-2001)
Oct. 2001 Vol. 222 No. 10 Industry Stats World Oil Production
01-10_worldoilsupply-graph.html (Oct-2001)
Oct. 2001 Vol. 222 No. 10 Industry Stats
nextmonth.html (Oct-2001)
Advanced Schedule of Articles Coming In December 2001. . . What's Ahead in 2002 World Oil's editorial advisors present
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